User manual

Table Of Contents
Part B Section 12.72
12.72 ENGINES
01 ENGINE SPECIFICATIONS
Pratt and Whitney Twin Wasp R1830-92 (SIC3-G)
Weight Propeller 1446lbs
Propeller
Prop Gear Ratio
Hamilton Standard Hydromatic (3
blade)
Hub 23E50
Blades 6353A-12
Pitch Feathered 88deg
Low 18deg at 42" Sta Diameter 11' 6-
3/8 ins Min 11' 3-3/8"
16:9
Fuel 100/130 Octane Min 91/96 W100 or
W120
Oil W100 or W120
Carburetor PD12H1 Dash 1 Setting
Min operating pressure 14 psi
No fuel delivered at less than 4 psi
Manual mixture control
Timing 25 deg BTDC
Power Rating 1200 BHP@ 2700 RPM 48” Boost
1200 BHP@ 2750 RPM 47” Boost
Idling RPM 1000 RPM, plugs will not foul
Generator Cut In 1200 RPM
Cylinders 14 (two banks of 7)
Rotation Clockwise (From rear)
Supercharging Single Stage (7,15:1)
Compression Ratio 6,7:1
Bore and Stoke 5,5 inches
Displacement 1830 Cu ins
Numbering Clockwise from the rear No 1 at top of
rear bank
Starter Fuel pump
Generator Prop Governor
Vacuum pump Hydraulic pump
STB only
Accessory drives
Tachometer Magnetos
Magnetos (2) RH mag to front plugs
Stichting Catalina PH-PBY Rev No: 00
18 May, 2004 Page: 1